Sony KP-57XBR10W Service Manual page 82

BD BOARD : IC1713, 1714, 1715,
BD BOARD : IC1722 TLC2935IPW
1719, 1720, 1721 PCM56P-L
LOGIC VCO PFD LOGIC
VDD SELECT OUT FIN-A FIN-B OUT GND
1 2 3 4 5 6 7
–Vs 1 16 +Vs
16-Bit
LATCH
LOG COM 2 15 TRIM 1/2 DIVIDER
16-Bit
Iout PFD
VCO
DAC
+V MSB ADJ
L 3 14
16-Bit
SERIAL-
PARALLEL
CONVERSION
NC 4 13 I OUT
14 13 12 11 10 9 8
CLK 5 12 ANA COM
VCO R BIAS VCO VCO VCO PFD NC
VDD IN GND INHIBIT INHIBIT
CONTROL
LOGIC
LE 6 11 SJ
LEVEL
SHIFT
BD BOARD : IC1716 TC74HC74AF (EL)
DATA 7 10 RF
2
–
Vcc CLR 2D 2CK 2PR 2Q 2Q
–V 8 9 V
L OUT
+ 14 13 12 11 10 9 8
PR
D Q
CK Q
CLR
CLR
CK Q
Q
D
PR
1 2 3 4 5 6 7
1 1D 1CK 1PR 1Q 1Q GND
CLR
• BD BOARD WAVEFORMS
1 2 3
4.7Vp-p (H) 4.8Vp-p (H) 4.9Vp-p (H)
4 5 6
5.1Vp-p (H)
5Vp-p (H) 2.8Vp-p (H)
7 8 9
1.2Vp-p (H)
1.3Vp-p (H) 2.6Vp-p (V)
10 11
3.3Vp-p (V)
2.3Vp-p (V)
Schematic diagram Schematic diagram
BD board /
? BR(3/3) board
– 131 –
1 2 3 4 5 6
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
– 132 –
7 8 9 10 11 12 13
– 133 –
14 15 16 17 18 19 20 21 22 23
– 134 –